Installation of a Gree Multi GEN2 Double Zone Heat Pump in Ville-Marie
Experience the future of HVAC with AirGreen! Our latest project in Ville-Marie features the innovative Gree Multi GEN2, offering unparalleled efficiency and design.
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The article, chapter by chapter
Exceptional Performance with Gree's Multi GEN2 Technology
In the bustling heart of Ville-Marie, Montreal, the demand for reliable and energy-efficient climate control solutions is ever-growing. Recognizing this need, our latest installation of the Gree Multi GEN2 Double Zone Heat Pump stands as a testament to our commitment to quality and sustainability. This project not only utilized a state-of-the-art HVAC system but also integrated seamlessly into the urban landscape, ensuring comfort without compromise.
Unveiling the Gree Multi GEN2
Gree Multi GEN2 is renowned for its high efficiency and robust performance. The system boasts a 24,000 BTU compressor capacity, capable of delivering optimal cooling and heating to multiple zones. Specifically, this installation featured two indoor units of 12,000 BTU each, perfectly tailored to meet the unique needs of the space.
Key Features of the Gree Multi GEN2:
- Cooling and Heating Capacity: Exceptional range with the ability to operate efficiently even at -30°C, ensuring year-round comfort.
- Zones and Flexibility: Initially set up for two zones, this system can be expanded to accommodate up to three zones, offering versatility in climate control.
- Energy Efficiency: With a SEER rating of 22.0 and AHRI certification, the Multi GEN2 reduces energy consumption and costs.
- Innovative Technology: Incorporating G10 inverter technology, the system adjusts power consumption based on heat load, enhancing overall efficiency.
Installation Story: A Blend of Efficiency and Design
The installation process in Ville-Marie was meticulously planned to align with the architectural aesthetics and functional demands of the area. Our team faced the challenge of integrating a modern HVAC system into a space that values both historical integrity and modern efficiency. The solution was a discreet yet powerful setup that maintained the building's visual appeal while providing top-tier climate control.
Challenges Overcome:
- Space Optimization: The compact design of the Multi GEN2 allowed for an unobtrusive installation, preserving valuable real estate in the premium urban area.
- Noise Reduction: Ensuring comfort extends beyond temperature control—this system operates at a low noise level of 58 dB(A), making it as quiet as it is powerful.
- Grant Utilization: The project qualified for a $2,832 LogisVert Grant by Hydro-Québec, further emphasizing its energy efficiency and eco-friendliness.
Customer-Centric Approach
Understanding the specific needs of our clients in Ville-Marie, this installation was designed to offer not only a sustainable and efficient heat pump solution but also one that enhances their daily experience. Features like WiFi capability for easy control and a self-diagnosis system ensure that the Multi GEN2 is as user-friendly as it is powerful.
Benefits Delivered:
- Remote Accessibility: WiFi integration allows homeowners to adjust settings remotely, providing convenience and control.
- Self-Diagnostic Features: Automated monitoring reduces maintenance needs and ensures that the system operates at peak efficiency.
- Extended Warranty Options: Offering a decade of peace of mind with a 10-year warranty on parts and compressor, with an optional 10-year labor warranty.
Why Choose AirGreen for Your HVAC Needs?
At AirGreen, we understand that installing a heat pump is a significant investment—one that should improve your quality of life and reduce your carbon footprint. Our team of certified professionals ensures that every installation is executed flawlessly, with attention to detail and a focus on customer satisfaction. The Gree Multi GEN2 installation in Ville-Marie is just one example of how we tailor our solutions to meet the specific needs and challenges of our clients.
Our Commitment:
- Tailored Solutions: We provide HVAC systems that are specifically designed for your space and needs.
- Sustainable Practices: Our installations are not only efficient but also environmentally friendly.
- Comprehensive Support: From the initial consultation to post-installation support, we're with you every step of the way.
Rediscover comfort with a system that blends seamlessly into your lifestyle and environment. Choose AirGreen for your next HVAC project and experience the difference professionalism and quality can make.
The job tools
Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.
Conversion: 1 W = 3.412 BTU/h. An indication, not a load calculation: baseboards and furnaces are often stronger than the real need, and they can stay as backup. AirGreen confirms the capacity on site.
How the job unfolds
The main steps of this kind of job at AirGreen. Every house has its quirks: the estimate brings them out.
We look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
Model, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
Floors and furniture protected, wall plate position marked level, wall opening located.
A single opening, with the slope the drain needs to flow outside.
Set on a stand raised above the snow, with the clearances the manufacturer requires.
Connected, insulated and protected. The opening is then sealed against water, cold air and insects.
A dedicated circuit and an accessible disconnect near the outdoor unit.
Leak test, vacuum, then start-up and a check of heating and cooling.
Remote, modes, filters: we show you the essentials before we leave.
- The on-site estimateWe look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
- The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
- Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
- The wall openingA single opening, with the slope the drain needs to flow outside.
- The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
- Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
- The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
- Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
- The walkthroughRemote, modes, filters: we show you the essentials before we leave.
What we check on a job like this one
Each number is a point we check on site. Switch between summer and winter to watch air and heat move.
In summer, the outdoor unit rejects the house's heat outside.
Generic illustration of this type of installation, not a survey of this job site. Tap a number.
Mounted level on a wall plate, high enough for the air to reach the whole room, with enough space around it to slide the filters out easily.
The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.
Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.
A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.
The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.
On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.
The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.
Is your home ready?
Check what applies at your place. A "no" is not a refusal: it is what we sort out during the estimate.
Good habits, once the unit is in place
Six simple habits that keep the unit going. Your list stays on this device.
What to do, season by season
Three habits per season for this unit. They take a few minutes and prevent many calls.
- Clean the indoor unit's filters.
- Clear leaves and debris left on the outdoor unit by winter.
- Test cooling before the first hot days.
- Clean the filters more often when the unit runs a lot.
- Keep plants away from the outdoor unit.
- Check that no water drips from the indoor unit.
- Rake the leaves around the outdoor unit.
- Test heating before the first cold days.
- Book periodic maintenance before winter.
- Keep snow away from the stand and the front of the unit.
- Let the unit defrost: it is normal.
- Never hit the ice on the fins; call us if the unit stays iced up.
The right pages, at the right time
Four statements: true or false?
It all comes down to details you have just seen.
1. In heating mode, the outdoor unit can produce water.
During defrost cycles. That water must drain away without forming ice.
2. You pick the capacity with a simple square-footage rule.
Windows, insulation, orientation and how the room is used all count. Capacity is chosen on site.
3. A multi-zone connects several indoor heads to a single condenser.
One head per room, all on the same condenser. Each room keeps its own temperature.
4. The disconnect can sit behind the patio furniture.
It must stay accessible: it is what shuts the unit off for service.
0 / 4 right answers
What people ask us about this kind of work
Does a wall-mounted heat pump heat in winter?
Wall-mounted or multi-zone: how do I choose?
Where does the outdoor unit go?
Are there grants?
Do I need a permit?
How cold can it heat?
How much can I save?
How is the LogisVert assistance calculated?
Is it noisy?
The outdoor unit is covered in ice: is that normal?
Does AirGreen hold the required licences?
Is the estimate free?
No question matches. Write to us: we answer.
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An on-site estimate, the right capacity, the right equipment.
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Text and photo: a real AirGreen Climatisation & Chauffage job. The diagrams are generic illustrations of the type of installation, not a survey of this job site. Sources of the added figures: airgreen.ca product pages (NEEP / AHRI performance), Hydro-Québec (Heat pumps page, LogisVert, read on 13 October 2026), Régie de l’énergie (rate D as of 1 April 2026).